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- Order number: S660004T
Complete with control knob. Viton® O-rings on PTEF shaft are protected with two precision PTFE wipers (or as shown in the second picture, O-ring is inside shaft).The plug has a machined-in integral PTFE tip O-ring to make the primary seal. This design provide for an excellent vacuum tight seal without exposing any material other than PTFE to chemicals.
Description: 0-4mm vacuum metering plug and control Valve (O-ring is inside shaft)